| 1921 – 1935 | Alois Wonisch |
| 1935 – 1954 | Franz Holler |
| 1954 – 1965 | Anton Strauß |
| 1965 – 1974 | Georg Lieb |
| 1974 – 1981 | Franz Hirsch |
| 1981 – 1992 | Herbert Ferk |
| 1992 – 2015 | Josef Gratz |
| 2015 | BM DI Michael Plaschitz |
| 1921 – 1935 | Alois Wonisch |
| 1935 – 1954 | Franz Holler |
| 1954 – 1965 | Anton Strauß |
| 1965 – 1974 | Georg Lieb |
| 1974 – 1981 | Franz Hirsch |
| 1981 – 1992 | Herbert Ferk |
| 1992 – 2015 | Josef Gratz |
| 2015 | BM DI Michael Plaschitz |